1912. 



PUBLIC DOCUMENT — No. 31. 



69 



(g) Summary of Results of Anahjses of the Covfi'plete Fertilizers as 

 compared with the Manufacturers* Guarantee — Con. 



The above table shows : — 



1. That 33i brands of registered complete fertilizers have 

 been collected and analyzed. 



2. That 191 brands (57 i:»er cent, of the total nnmbcr an- 

 alyzed) fell below the manufacturers' guarantee in one or more 

 elements. 



3. That 135 brands were deficient in one element. 



4. That 51 brands were deficient in two elements. 



5. That 5 brands were deficient in three elements. 



6. That 1:1 brands (over 12 per cent, of the whole number 

 analyzed) showed a commercial shortage ; that is, when the over- 

 runs were used to offset shortages they did not show the amount 

 in value of plant food as expressed by the smallest guarantee. 



The deficiencies found were divided as follows : — 



9(5 brands were found deficient in nitrosjon. 



90 brands were found deficient in available phosphoric acid. 



66 brands were found deficient in potash. 



